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| author |   Yafang Shao <laoar.shao@gmail.com> | 2019-05-13 17:19:14 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:48 -0700 |
| commit | 3481c37ffa1de58ef140d0fe9eabf56305e74666 (patch) | |
| tree | 7af04951d500ce2b896425f65b04f84ea395b270 /mm/vmscan.c | |
| parent | mm: page_mkclean vs MADV_DONTNEED race (diff) | |
| download | linux-dev-3481c37ffa1de58ef140d0fe9eabf56305e74666.tar.xz linux-dev-3481c37ffa1de58ef140d0fe9eabf56305e74666.zip | |
mm/vmscan: drop may_writepage and classzone_idx from direct reclaim begin template
There are three tracepoints using this template, which are
mm_vmscan_direct_reclaim_begin,
mm_vmscan_memcg_reclaim_begin,
mm_vmscan_memcg_softlimit_reclaim_begin.
Regarding mm_vmscan_direct_reclaim_begin,
sc.may_writepage is !laptop_mode, that's a static setting, and
reclaim_idx is derived from gfp_mask which is already show in this
tracepoint.
Regarding mm_vmscan_memcg_reclaim_begin,
may_writepage is !laptop_mode too, and reclaim_idx is (MAX_NR_ZONES-1),
which are both static value.
mm_vmscan_memcg_softlimit_reclaim_begin is the same with
mm_vmscan_memcg_reclaim_begin.
So we can drop them all.
Link: http://lkml.kernel.org/r/1553736322-32235-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index e869f9e25a3d..41a14eed2e16 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3174,10 +3174,7 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, if (throttle_direct_reclaim(sc.gfp_mask, zonelist, nodemask)) return 1; - trace_mm_vmscan_direct_reclaim_begin(order, - sc.may_writepage, - sc.gfp_mask, - sc.reclaim_idx); + trace_mm_vmscan_direct_reclaim_begin(order, sc.gfp_mask); nr_reclaimed = do_try_to_free_pages(zonelist, &sc); @@ -3208,9 +3205,7 @@ unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, (GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK); trace_mm_vmscan_memcg_softlimit_reclaim_begin(sc.order, - sc.may_writepage, - sc.gfp_mask, - sc.reclaim_idx); + sc.gfp_mask); /* * NOTE: Although we can get the priority field, using it @@ -3259,10 +3254,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg, zonelist = &NODE_DATA(nid)->node_zonelists[ZONELIST_FALLBACK]; - trace_mm_vmscan_memcg_reclaim_begin(0, - sc.may_writepage, - sc.gfp_mask, - sc.reclaim_idx); + trace_mm_vmscan_memcg_reclaim_begin(0, sc.gfp_mask); psi_memstall_enter(&pflags); noreclaim_flag = memalloc_noreclaim_save(); |